mount tool repo root read only for containerized tests

xref galaxyproject/planemo#1327

planemo_ci_actions.sh

@@ -2,7 +2,7 @@
 set -exo pipefail
 
 PLANEMO_TEST_OPTIONS=("--database_connection" "$DATABASE_CONNECTION" "--galaxy_source" "https://github.com/$GALAXY_FORK/galaxy" "--galaxy_branch" "$GALAXY_BRANCH" "--galaxy_python_version" "$PYTHON_VERSION" --test_timeout "$TEST_TIMEOUT")
-PLANEMO_CONTAINER_DEPENDENCIES=("--biocontainers" "--no_dependency_resolution" "--no_conda_auto_init")
+PLANEMO_CONTAINER_DEPENDENCIES=("--biocontainers" "--no_dependency_resolution" "--no_conda_auto_init" "--docker_extra_volume" "./")
 PLANEMO_WORKFLOW_OPTIONS=("--shed_tool_conf" "/cvmfs/main.galaxyproject.org/config/shed_tool_conf.xml" "--no_shed_install" "--tool_data_table" "/cvmfs/data.galaxyproject.org/managed/location/tool_data_table_conf.xml" "--tool_data_table" "/cvmfs/data.galaxyproject.org/byhand/location/tool_data_table_conf.xml" "--tool_data_path" "/cvmfs/data.galaxyproject.org/" "--docker_extra_volume" "/cvmfs")
 read -ra ADDITIONAL_PLANEMO_OPTIONS <<< "$ADDITIONAL_PLANEMO_OPTIONS"